DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Main Body ECU Communication Stop Mode |
Either condition is met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
CAUTION:
When performing the confirmation driving pattern, obey all speed limits and traffic laws.
NOTICE:
Click here
Click here
Click here
DTC check procedure: Turn the ignition switch to ON and wait for 1 minute or more. Then operate the suspected malfunctioning system and drive the vehicle at 60 km/h (37 mph) or more for 5 minutes or more.
Click here
Click here
HINT:
PROCEDURE
1. |
CHECK FOR OPEN IN CAN BUS LINES (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the main body ECU (multiplex network body ECU) connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
M6-14 (CANH) - M6-13 (CANL) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
*a |
Front view of wire harness connector (to Main Body ECU (Multiplex Network Body ECU)) |
NG | ![]() |
REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Remove the main body ECU (multiplex network body ECU). Click here |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
MB-11 (GND1) - Body ground |
Cable disconnected from negative (-) battery terminal |
Below 1 Ω |
(c) Connect the cable to the negative (-) battery terminal.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
MB-30 (ACC) - Body ground |
Ignition switch ACC |
11 to 14 V |
MB-31 (BECU) - Body ground |
Always |
11 to 14 V |
MB-32 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
*1 |
Driver Side Junction Block |
Result |
Proceed to |
---|---|
OK |
A |
NG (for BECU circuit) |
B |
NG (for ACC circuit) |
C |
NG (for IG circuit) |
D |
NG (for GND1 circuit) |
E |
A | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
C | ![]() |
GO TO LIGHTING SYSTEM (ACC SIGNAL CIRCUIT) |
D | ![]() |
GO TO LIGHTING SYSTEM (IG SIGNAL CIRCUIT) |
E | ![]() |
GO TO STEP 4 |
|
3. |
CHECK HARNESS AND CONNECTOR (BECU CIRCUIT) |
(a) Disconnect the driver side junction block connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1F-15 - Body ground |
Always |
11 to 14 V |
*a |
Front view of wire harness connector (to Driver Side Junction Block) |
OK | ![]() |
REPLACE DRIVER SIDE JUNCTION BLOCK |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (BECU CIRCUIT) |
4. |
CHECK HARNESS AND CONNECTOR (GND1 CIRCUIT) |
(a) Disconnect the driver side junction block connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-5 - Body ground |
Always |
Below 1 Ω |
*a |
Front view of wire harness connector (to Driver Side Junction Block) |
OK | ![]() |
REPLACE DRIVER SIDE JUNCTION BLOCK |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GND1 CIRCUIT) |
Diameter of the Tire is not Uniform (C1337)
DESCRIPTION
The skid control ECU (brake actuator assembly) measures the speed of each wheel
by receiving signals from the speed sensors. These signals are used for recognizing
whether all 4 wheels are operating properly. Therefore, all wheel signals must indicate
the same speed.
D ...
Engine compartment
2.7 L 4-cylinder (2TR-FE) engine
1. Washer fluid tank
2.Radiator cap
3.Engine coolant reservoir
4. Engine oil filler cap
5. Power steering fluid reservoir
6. Engine oil level dipstick
7. Brake fluid reservoir
8. Fuse box
9. Battery
10. Condenser
11. Radiator
4.0 L V6 (1GR-FE) engine
...
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE STEERING INTERMEDIATE SHAFT ASSEMBLY
(a) Put matchmarks on the steering intermediate shaft assembly and steering main
shaft assembly.
(b) Remove the bolt and steering intermediate shaft assembly.
2. REMOVE UPPER STEERING COLUMN BRACKET WITH SWITCH ASSEMBLY (w ...